Tieback fastener



Aug- 6,1940. c. M, DENNY 2,210,799

TIEBACK FASTENER Filed June 7, 1939 Patented Aug. 1940 UNITED STATES PATENT OFFICE TIEBACK FASTENER 1 Claim.

This invention relates to fastening devices, and its general object is to provide a fastener that is primarily designed for securing the so-called tieback strips for curtains, draperies and the like in place, and in a manner whereby the strips are held against any possibility of removal from the fastener yet can be easily and expeditiously applied and removed with respect thereto.

A further object is to provide a fastener of the character set forth, that is simple in construction, inexpensive to manufacture, easy to apply, and extremely efficient in use and service.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specically pointed out in the appended claim.

In describing the invention in detail, reference will be had to the accompanying drawing Wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is a view partly in section taken through'the fastener which forms the subject matter of the present invention and illustrates the same in use.

Figure 2 is a side view of the cap of my fastener.

Figure 3 is a similar view of the headed penetrating member to be driven in position for use for receiving the cap.

Figure 4 is a bottom plan view of the cap.

Figure 5 is a top plan view of the penetrating member.

Figure 6 is a bottom plan view of the penetrating member with a part thereof broken away.

Figure 7 is a perspective view illustrating my fastener in use.

Referring to the drawing in detail, the letter A indicates the frame of a window, passageway or the like, B a curtain or drapery and C a tieback strip, all of which form no part of the present invention but are shown merely for the purpose of illustrating my fastener in use.

The fastener includes a pair of companion members, and one which I term the penetrating member is provided with a head I having a shank 2 formed thereon and tapering inwardly toward its outer end and terminating into a penetrating point 3. The head is provided with an annular groove l adjacent to the inner end thereof, and outwardly of the groove the head is shaped in conical formation as at 5, and provided with a fiat outer end, as best shown in Figure 3.

The other member which I term the cap, in-

cludes a substantially dome-shaped hollow portion 6 having an annular fiange 1 formed on and extending inwardly from the periphery thereof and formed on the inner edge of the ange is a substantially cylindrical skirt portion 8 having its outer edge rolled outwardly to provide a bead 9. The skirt portion is grooved to provide an annular inwardly extending rib I0 adjacent to its outer end, as best shown in Figure 1 and the rib is shaped to conform to the shape of the annular groove 4 for the purpose of cooperating therewith for securing the tieback strip C to the head, as likewise shown in Figure 1.

The skirt portion is slotted as at H upon dametrically opposite sides thereof throughout its length, so as to set up a spring clamping action with respect to the head, as will be apparent..

In the use of my fastening device, it will be obvious from the drawing that the penetrating member is driven into the frame A to be permanently secured thereto, thence the tieback strip is disposed about the curtain or drapery B as shown in Figure 7. The free portions of the tieback strip are then held in engagement with the head I and the cap is then applied which results in forcing the material of the tieback strip about the head and within the groove 4, to be held therein by the rib I0, as clearly shown in Figure l, therefore it will be seen that casual removal of the tieback strip from the fastener is practically impossible, yet it can be applied and removed with respect thereto ln an Veasy and expeditious manner.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be mage in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is:

A fastening device for fabric tieback means for curtains and the like, comprising a headed shank to be permanently fixed to a window frame or the like for receiving the tieback means on the -head thereof, said head having an annular groove therein adjacent its juncture with the shank and a substantially conical outer portion, a cap for the head and including a hollow substantially dome-shaped portion, an annular flange inwardly directed from the dome-shaped portion, a substantially cylindrical skirt portion formed on the inner edge of the flange and extending outwardly therefrom to be mounted on the head, a rib in the skirt portion adjacent its outer end to be received in the groove for cooperation therewith for securing the tieback means to the head and with the latter wholly within the skirt to allow ample space within the dome-shaped portion for the tieback means to project, and said skirt portion being slotted upon diametrically opposite sides thereof throughout its length to set up a spring clamping action with respect to the head and to cooperate with said conical outer portion to facilitate the application of the cap on the head.

CHARLES M. DENNY. 

